80493463220

素因数分解:

$2^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{20429813}}^1$

素因数の和:20430019

約数の個数: 24

約数和(自身を含む): 169894333224

約数和(自身を除く): 89400870004

約数列:

[1, 2, 4, 5, 10, 20, 197, 394, 788, 985, 1970, 3940, 20429813, 40859626, 81719252, 102149065, 204298130, 408596260, 4024673161, 8049346322, 16098692644, 20123365805, 40246731610, 80493463220]

約数ペア:

[(1, 80493463220), (2, 40246731610), (4, 20123365805), (5, 16098692644), (10, 8049346322), (20, 4024673161), (197, 408596260), (394, 204298130), (788, 102149065), (985, 81719252), (1970, 40859626), (3940, 20429813)]